Many people believe that coffee allows them to better concentrate on a task and simply makes the body more alert.
But there are also rumors about the drink that it can take away energy and make a person lethargic.
Coffee invigorates thanks to caffeine, which is structurally similar to adenosine. Caffeine penetrates the brain and blocks adenosine receptors.
As you can understand, this effect cannot last forever.
Why can coffee make you sleepy?
If you drink coffee often, the body begins to adapt to the intake of caffeine and the number of adenosine receptors increases.
If the dose of the stimulant is not increased, it is not able to cause the same vigor and an additional mug of the drink is required.
It doesn't take long for this body reaction to develop. After three days, coffee stops masking the lack of sleep. So it's better to work on your sleep schedule and plan your rest.
Earlier we wrote about whether it is possible to add milk to green tea.
